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Showing 1 to 20 of 114 for “"Heavy oil"”.
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Dynamic and Static CO2 Mass Transfer Processes in Bulk Heavy Oil and Heavy Oil Saturated Porous Media
… contribution of solvents to the production of oil has become more cardinal, as production from the reservoirs have advanced from primary oil production to secondary and tertiary methods. Vapour extraction (VAPEX), CO2 flooding, CO2 Huff-and-Puff are some of the solvent based approaches used in …
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Cold heavy oil production using CO2-EOR technique.
… technique to enable production from an offshore heavy oil field, named here as Omega, which is located offshore West Africa at a water depth around 2000 m. The findings and contributions to knowledge are outlined as follows: 1. Long distance CO2 transportation offshore - The solution to the space …
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Mass transfer studies in heavy oil recovery using solvents
"Heavy oil, sometimes called bitumen, is known for its high viscosity (above 100 cp) and low API gravity (below 22⁰). In most cases, viscosity reduction is needed for the final product. There is a considerable amount of heavy oil in Alberta, Canada and the world's largest heavy oil deposit is in …
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The Phase Behavior of Heavy Oil and Propane Mixtures
… High pressure micrographs demonstrated that the heavy phase (a pitch phase) transitioned from a glass to a liquid state with increased temperature and feed propane content. Pressure-temperature and pressure-composition phase diagrams were constructed from saturation pressure and pitch phase onset …
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Investigation into the impact of biosurfactant in heavy oil reservoirs
Exploitation of oil resources in mature reservoirs is essential for meeting future energy demands. Despite the primary and secondary oil recovery, significant amount of residual oil is still left behind in the reservoir, necessitating tertiary recovery methods. These typically includes surfactant …
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Enhanced Cyclic Solvent Process (ECSP) for Thin Heavy Oil Reservoirs
… for the solvent gas drive to occur during which oil regains its high viscosity because a significant amount of solvent gas evolves out of oil. Also, at low-to-intermediate pressures, the methane solubility in the oil is not high. Additionally, continuous free gas saturation during early …
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Application of Polymer and Nanomaterials for Improving Heavy Oil Recovery
… in Canada. A major source of energy is oil extracted from underground petroleum reservoirs. Utilizing current technology and equipment, only a small portion of oil can be produced and recovered. Steam-assisted gravity drainage (SAGD), used as a common technique to produce heavy oil in …
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An Improved Vapour Solvent Injection Technique for Enhanced Heavy Oil Recovery
There are tremendous heavy oil and bitumen resources in Canada, and most of them are located in the Western Canadian Sedimentary Basin. Thermal-based recovery techniques, such as steam flooding, cyclic steam stimulation (CSS), and steam-assisted gravity drainage (SAGD), are effective and have been …
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Non-thermal Recovery of Heavy oil and Oil Sands Using Nanoparticle
Heavy oils and oil sand resources are considered the largest portion of known energy resources, comprising 70% of total resources. Still, there is potential to increase oil production from these resources to fulfill future global energy needs. There have long been serious critiques of the methods …
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Effect of Temperature on Performance of Vapex Process for Heavy Oil
… to be the most viable option for improving the oil drainage rate of Vapex (Vapor Extraction) in extra-heavy oil formations. This study was aimed at quantifying the upper limit of oil rates achievable with heated solvent injection. Results of the performed research can also be used to assess the …
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A Comprehensive Study and Mechanism Investigation for Alkaline-Heavy Oil Recovery Process
… is an important branch of chemical enhanced oil recovery (EOR). The complexity of alkaline flooding study is mainly embodied by its chemical reaction required by alkalis to react with oil acids. Consequently, in-situ surfactants are generated for various emulsification phenomenon. It is known …
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Pressure Pulsing Potential During Waterflooding and CO2 Flooding of Heavy Oil Reservoirs
… hydrocarbons. Society has become so dependent on oil and natural gas that no one can imagine life without the resources. Oil and gas deposits are limited and the main portion of conventional reservoirs is at a late stage of development, hence, the market price for oil and gas is continuously …
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Heavy Oil Recovery by Gas Assisted Gravity Drainage in Naturally Fractured Reservoirs
… the industry has started to implement Enhanced Oil Recovery (EOR) techniques in such reservoirs. With advancements in the data acquisition technologies, it is now possible to determine the fracture direction, length, thickness, morphology and angle. Such information is crucial for the …
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Experimental Study of Heavy Oil Recovery Mechanisms during Cyclic Solvent Injection Processes
… has shown to be a promising method for enhanced heavy oil recovery in Canada. CSI laboratory studies work for only 2 to 3 cycles due to low incremental oil in subsequent cycles whereas field pilots continue for years over multiple cycles This experimental study is intended to capture the …
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A Multicomponent Walkaway Vertical Seismic Profile Experiment in a Heavy Oil Reservoir
… and used to predict rock properties in a heavy oil reservoir. Post-stack image and pre-stack gathers were made for inversion and AVO analysis. A common shot reflectivity gather was also created for AVO study at the VSP well location. P and S-wave impedance, reflectivity, Vp/Vs and density …
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Experimental Study on Foamy Oil Flow by Using Different heavy Oil-Solvent Systems
Foamy oil flow that occurs in heavy oil reservoirs under solution gas drive in the primary production process, shows an anomalous production performance compared with that in conventional solution gas drive reservoirs [Maini, 2001]. Although several laboratory experimental studies have been carried …
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